USB scanner unrecognized on 1.11-DEVELOPMENT

[Francois Tigeot]

Hi,

I recently upgraded a machine from Dragonfly 1.10.1 to a recent
1.11.0-DEVELOPMENT (as of today).

An Epson Perfection 1240U USB scanner which worked fine with 1.10.1 is now
unrecognized. Pluging and unpluging the USB cord doesn't result in any
kernel message visible in dmesg.

I know the USB stuff has been heavily refactored since the last release.
How can I proceed to debug this ?

-- 
Francois Tigeot